A lonely party balloon with a volume of 2.40 L and containing 0.100 mol of air is left behind to drift in the temporarily uninhabited and depressurized International Space Station. Sunlight coming through a porthole heats and explodes the balloon, causing the air in it to undergo a free expansion into the empty station, whose total volume is 425 m3. Calculate the entropy change of the air during the expansion.

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A lonely party balloon with a volume of 2.40 L and
containing 0.100 mol of air is left behind to drift in the temporarily uninhabited
and depressurized International Space Station. Sunlight coming
through a porthole heats and explodes the balloon, causing the air in it
to undergo a free expansion into the empty station, whose total volume
is 425 m3. Calculate the entropy change of the air during the expansion.

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